Table 1

Associations between manually lifting patients and the occurrence of back pain among nursing personnel in nine observational studies

AuthorStudy population and designOutcome measureExposure (% exposed)Measure of associationPopulation attributable fraction (%) (% with 95% confidence interval)
Arad and Ryan14831 nurses (CS)LBP in past month (42%)≥6 patient lifts per shift (95%)OR 2.5 (1.8–3.4)58 (43–70)
Engkvist et al15854 nurses (CR)Back injury in past 32 months (28%)≥1 patient lift per shift (88%)OR 2.7 (1.6–4.5)60 (35–75)
Landry et al16344 health professionals (CS)Current LBP (22%)Patient lifts:
1–5 times per day (43%)OR 2.0 (1.4–2.8)30 (15–44)
6–10 times per day (22%)OR 1.7 (1.1–2.7)13 (2–27)
>10 times per day (16%)OR 7.5 (5.2–10.8)51 (40–61)
Lo et al1737 nurses (CS)Current LBP (30%)Patient lifts, for each additional 100 kg liftedOR 1.1 (1.0–1.2)1 (0–3)
Mandel and Lohman18428 nurses (CS)LBP for at least 2 days in past 12 months (15%)>2 patient lifts per shift (50%)OR 1.4 (1.1–1.8)16 (2–30)
Smedley et al191616 nurses (CS)LBP in past 12 months (45%)Patient lifts:
1–4 times per shift (33%)OR 1.4 (1.1–1.9)12 (3–23)
5–9 times per shift (17%)OR 1.8 (1.3–2.5)12 (5–20)
≥10 times per shift (21%)OR 1.5 (1.1–2.1)10 (2–19)
Stobbe et al20415 nurses (CS)Back injury claim in past 40 months (17%)>5 patient lifts per shift (76%) versus <2 times per shiftHR 2.4 (p<0.05)51
Smedley et al21783 nurses (CO)
2-year follow-up
LBP during follow-up (38%)Patient lifts:
1–4 times per shift (33%)OR 1.3 (0.9–1.7)9 (0–19)
5–9 times per shift (14%)OR 1.6 (1.1–2.3)8 (1–15)
≥10 times per shift (19%)OR 1.6 (1.1–2.3)10 (2–20)
Venning et al224306 nurses (CO)
1-year follow-up
LBP injury claim in past 12 months (2.9%)≥1 patient lift per day (44%)OR 2.2 (p<0.05)34
  • CO, prospective cohort study; CR, case-referent study; CS, cross-sectional study; LBP, low back pain.